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Diffstat (limited to 'cmd/podman/generate/kube.go')
-rw-r--r--cmd/podman/generate/kube.go68
1 files changed, 68 insertions, 0 deletions
diff --git a/cmd/podman/generate/kube.go b/cmd/podman/generate/kube.go
new file mode 100644
index 000000000..86a9cc686
--- /dev/null
+++ b/cmd/podman/generate/kube.go
@@ -0,0 +1,68 @@
+package pods
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+
+ "github.com/containers/libpod/cmd/podman/registry"
+ "github.com/containers/libpod/cmd/podman/utils"
+ "github.com/containers/libpod/pkg/domain/entities"
+ "github.com/pkg/errors"
+ "github.com/spf13/cobra"
+)
+
+var (
+ kubeOptions = entities.GenerateKubeOptions{}
+ kubeFile = ""
+ kubeDescription = `Command generates Kubernetes pod and service YAML (v1 specification) from a Podman container or pod.
+
+Whether the input is for a container or pod, Podman will always generate the specification as a pod.`
+
+ kubeCmd = &cobra.Command{
+ Use: "kube [flags] CONTAINER | POD",
+ Short: "Generate Kubernetes YAML from a container or pod.",
+ Long: kubeDescription,
+ RunE: kube,
+ Args: cobra.ExactArgs(1),
+ Example: `podman generate kube ctrID
+ podman generate kube podID
+ podman generate kube --service podID`,
+ }
+)
+
+func init() {
+ registry.Commands = append(registry.Commands, registry.CliCommand{
+ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+ Command: kubeCmd,
+ Parent: generateCmd,
+ })
+ flags := kubeCmd.Flags()
+ flags.BoolVarP(&kubeOptions.Service, "service", "s", false, "Generate YAML for a Kubernetes service object")
+ flags.StringVarP(&kubeFile, "filename", "f", "", "Write output to the specified path")
+ flags.SetNormalizeFunc(utils.AliasFlags)
+}
+
+func kube(cmd *cobra.Command, args []string) error {
+ report, err := registry.ContainerEngine().GenerateKube(registry.GetContext(), args[0], kubeOptions)
+ if err != nil {
+ return err
+ }
+
+ content, err := ioutil.ReadAll(report.Reader)
+ if err != nil {
+ return err
+ }
+ if cmd.Flags().Changed("filename") {
+ if _, err := os.Stat(kubeFile); err == nil {
+ return errors.Errorf("cannot write to %q", kubeFile)
+ }
+ if err := ioutil.WriteFile(kubeFile, content, 0644); err != nil {
+ return errors.Wrapf(err, "cannot write to %q", kubeFile)
+ }
+ return nil
+ }
+
+ fmt.Println(string(content))
+ return nil
+}